net.sf.saxon.value

## Class BigIntegerValue

- java.lang.Object
- - net.sf.saxon.om.AbstractItem
  - - net.sf.saxon.value.AtomicValue
    - - net.sf.saxon.value.NumericValue
      - - net.sf.saxon.value.IntegerValue
        - - net.sf.saxon.value.BigIntegerValue

- All Implemented Interfaces:
    Comparable, PullEvent, AtomicSequence, GroundedValue, IdentityComparable, Item, Sequence, ConversionResult

      public final class BigIntegerValue
      extends IntegerValue

  An integer value: note this is a subtype of decimal in XML Schema, not a primitive type. The abstract class IntegerValue is used to represent any xs:integer value; this implementation is used for values that do not fit comfortably in a Java long; including the built-in subtype xs:unsignedLong

- - ### Nested Class Summary

    Nested Classes
    Modifier and Type | Class and Description
    --- | ---
    `protected static class` | `BigIntegerValue.BigIntegerComparable` A Comparable that performs comparison of BigInteger values either with other BigInteger values or with other representations of XPath numeric values

  - ### Field Summary

    Fields
    Modifier and Type | Field and Description
    --- | ---
    `static BigInteger` | `MAX_LONG`
    `static BigInteger` | `MAX_UNSIGNED_LONG`
    `static BigInteger` | `MIN_LONG`
    `static BigIntegerValue` | `ZERO`

    - ### Fields inherited from class net.sf.saxon.value.IntegerValue

      `MINUS_ONE, PLUS_ONE`

    - ### Fields inherited from class net.sf.saxon.value.AtomicValue

      `typeLabel`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `BigIntegerValue(BigInteger value)` Construct an xs:integer value from a Java BigInteger
    `BigIntegerValue(BigInteger value, AtomicType typeLabel)` Construct an xs:integer value from a Java BigInteger, supplying a type label.
    `BigIntegerValue(long value)` Construct an xs:integer value from a Java long.

  - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `NumericValue` | `abs()` Get the absolute value as defined by the XPath abs() function
    `BigInteger` | `asBigInteger()` Get the value as a BigInteger
    `BigDecimal` | `asDecimal()` Convert the value to a BigDecimal
    `NumericValue` | `ceiling()` Implement the XPath ceiling() function
    `int` | `compareTo(long other)` Compare the value to a long
    `int` | `compareTo(Object other)` Compare the value to another numeric value
    `ValidationFailure` | `convertToSubType(BuiltInAtomicType type, boolean validate)` This class allows subtypes of xs:integer to be held, as well as xs:integer values.
    `AtomicValue` | `copyAsSubType(AtomicType typeLabel)` Create a copy of this atomic value, with a different type label
    `NumericValue` | `div(IntegerValue other)` Divide by another integer
    `boolean` | `effectiveBooleanValue()` Return the effective boolean value of this integer
    `NumericValue` | `floor()` Implement the XPath floor() function
    `BigDecimal` | `getDecimalValue()` Get the numeric value converted to a decimal
    `double` | `getDoubleValue()` Get the numeric value as a double
    `float` | `getFloatValue()` Get the numeric value converted to a float
    `String` | `getPrimitiveStringValue()` Get the value as a String
    `Comparable` | `getSchemaComparable()` Get an object that implements XML Schema comparison semantics
    `int` | `hashCode()` Get the hashCode.
    `IntegerValue` | `idiv(IntegerValue other)` Integer divide by another integer
    `boolean` | `isWholeNumber()` Determine whether the value is a whole number, that is, whether it compares equal to some integer
    `boolean` | `isWithinLongRange()` Test whether the value is within the range that can be held in a 64-bit signed integer
    `long` | `longValue()` Get the value as a long
    `IntegerValue` | `minus(IntegerValue other)` Subtract another integer
    `IntegerValue` | `mod(IntegerValue other)` Take modulo another integer
    `NumericValue` | `negate()` Negate the value
    `IntegerValue` | `plus(IntegerValue other)` Add another integer
    `IntegerValue` | `reduce()` Reduce a value to its simplest form.
    `NumericValue` | `round(int scale)` Implement the XPath round() function
    `NumericValue` | `roundHalfToEven(int scale)` Implement the XPath round-to-half-even() function
    `int` | `signum()` Determine whether the value is negative, zero, or positive
    `IntegerValue` | `times(IntegerValue other)` Multiply by another integer
    `ValidationFailure` | `validateAgainstSubType(BuiltInAtomicType type)` This class allows subtypes of xs:integer to be held, as well as xs:integer values.

    - ### Methods inherited from class net.sf.saxon.value.IntegerValue

      `castableAsInteger, checkBigRange, checkRange, getMaxInclusive, getMinInclusive, getPrimitiveType, isIdentical, makeIntegerValue, makeIntegerValue, makeIntegerValue, signum, stringToInteger`

    - ### Methods inherited from class net.sf.saxon.value.NumericValue

      `equals, getXPathComparable, isInteger, parseNumber, toString`

    - ### Methods inherited from class net.sf.saxon.value.AtomicValue

      `asAtomic, checkPermittedContents, getCanonicalLexicalRepresentation, getCardinality, getComponent, getItemType, getStringValue, getStringValueCS, head, isIdentical, isNaN, itemAt, iterate, process, setTypeLabel`

    - ### Methods inherited from class net.sf.saxon.om.AbstractItem

      `getLength, subsequence`

    - ### Methods inherited from class java.lang.Object

      `clone, finalize, getClass, notify, notifyAll, wait, wait, wait`

    - ### Methods inherited from interface net.sf.saxon.om.AtomicSequence

      `getLength`

    - ### Methods inherited from interface net.sf.saxon.om.GroundedValue

      `subsequence`

- - ### Field Detail

    - #### MAX_LONG

          public static final BigInteger MAX_LONG

    - #### MIN_LONG

          public static final BigInteger MIN_LONG

    - #### MAX_UNSIGNED_LONG

          public static final BigInteger MAX_UNSIGNED_LONG

    - #### ZERO

          public static final BigIntegerValue ZERO

  - ### Constructor Detail

    - #### BigIntegerValue

          public BigIntegerValue(BigInteger value)

      Construct an xs:integer value from a Java BigInteger
      Parameters:
        `value` - the supplied BigInteger

    - #### BigIntegerValue

          public BigIntegerValue(BigInteger value,
                         AtomicType typeLabel)

      Construct an xs:integer value from a Java BigInteger, supplying a type label. It is the caller's responsibility to ensure that the supplied value conforms with the rules for the specified type.
      Parameters:
        `value` - the value of the integer
        `typeLabel` - the type, which must represent a type derived from xs:integer

    - #### BigIntegerValue

          public BigIntegerValue(long value)

      Construct an xs:integer value from a Java long. Note: normally, if the value fits in a long, then an Int64Value should be used. This constructor is largely for internal use, when operations are required that require two integers to use the same implementation class to be used.
      Parameters:
        `value` - the supplied Java long

  - ### Method Detail

    - #### copyAsSubType

          public AtomicValue copyAsSubType(AtomicType typeLabel)

      Create a copy of this atomic value, with a different type label
      Specified by:
        `copyAsSubType` in class `AtomicValue`
      Parameters:
        `typeLabel` - the type label of the new copy. The caller is responsible for checking that the value actually conforms to this type.
      Returns:
        the copied value

    - #### convertToSubType

          public ValidationFailure convertToSubType(BuiltInAtomicType type,
                                           boolean validate)

      This class allows subtypes of xs:integer to be held, as well as xs:integer values. This method sets the required type label. Note that this method modifies the value in situ.
      Specified by:
        `convertToSubType` in class `IntegerValue`
      Parameters:
        `type` - the subtype of integer required
        `validate` - true if validation is required, false if the caller warrants that the value is valid for the subtype
      Returns:
        null if the operation succeeds, or a ValidationException if the value is out of range

    - #### validateAgainstSubType

          public ValidationFailure validateAgainstSubType(BuiltInAtomicType type)

      This class allows subtypes of xs:integer to be held, as well as xs:integer values. This method checks that the value is valid against the rules for a given subtype.
      Specified by:
        `validateAgainstSubType` in class `IntegerValue`
      Parameters:
        `type` - the subtype of integer required
      Returns:
        null if the operation succeeds, or a ValidationException if the value is out of range

    - #### hashCode

          public int hashCode()

      Get the hashCode. This must conform to the rules for other NumericValue hashcodes
      Specified by:
        `hashCode` in class `NumericValue`
      Returns:
        the hash code of the numeric value
      See Also:
        `NumericValue.hashCode()`

    - #### longValue

          public long longValue()

      Get the value as a long
      Specified by:
        `longValue` in class `NumericValue`
      Returns:
        the value of the xs:integer, as a Java long

    - #### asBigInteger

          public BigInteger asBigInteger()

      Get the value as a BigInteger
      Specified by:
        `asBigInteger` in class `IntegerValue`
      Returns:
        the value of the xs:integer as a Java BigInteger

    - #### isWithinLongRange

          public boolean isWithinLongRange()

      Test whether the value is within the range that can be held in a 64-bit signed integer
      Returns:
        true if the value is within range for a long

    - #### asDecimal

          public BigDecimal asDecimal()

      Convert the value to a BigDecimal
      Returns:
        the resulting BigDecimal

    - #### effectiveBooleanValue

          public boolean effectiveBooleanValue()

      Return the effective boolean value of this integer
      Specified by:
        `effectiveBooleanValue` in interface `GroundedValue`
      Overrides:
        `effectiveBooleanValue` in class `AtomicValue`
      Returns:
        false if the integer is zero, otherwise true

    - #### compareTo

          public int compareTo(Object other)

      Compare the value to another numeric value
      Specified by:
        `compareTo` in interface `Comparable`
      Overrides:
        `compareTo` in class `NumericValue`
      Parameters:
        `other` - the numeric value to be compared to this value
      Returns:
        -1 if this value is less than the other, 0 if they are equal, +1 if this value is greater

    - #### compareTo

          public int compareTo(long other)

      Compare the value to a long
      Specified by:
        `compareTo` in class `NumericValue`
      Parameters:
        `other` - the value to be compared with
      Returns:
        -1 if this is less, 0 if this is equal, +1 if this is greater or if this is NaN

    - #### getPrimitiveStringValue

          public String getPrimitiveStringValue()

      Get the value as a String
      Specified by:
        `getPrimitiveStringValue` in class `AtomicValue`
      Returns:
        a String representation of the value

    - #### getDoubleValue

          public double getDoubleValue()

      Get the numeric value as a double
      Specified by:
        `getDoubleValue` in class `NumericValue`
      Returns:
        A double representing this numeric value; NaN if it cannot be converted

    - #### getDecimalValue

          public BigDecimal getDecimalValue()

      Get the numeric value converted to a decimal
      Specified by:
        `getDecimalValue` in class `NumericValue`
      Returns:
        a decimal representing this numeric value;

    - #### getFloatValue

          public float getFloatValue()

      Get the numeric value converted to a float
      Specified by:
        `getFloatValue` in class `NumericValue`
      Returns:
        a float representing this numeric value; NaN if it cannot be converted

    - #### negate

          public NumericValue negate()

      Negate the value
      Specified by:
        `negate` in class `NumericValue`
      Returns:
        the result of inverting the sign of the value

    - #### floor

          public NumericValue floor()

      Implement the XPath floor() function
      Specified by:
        `floor` in class `NumericValue`
      Returns:
        the integer value, unchanged

    - #### ceiling

          public NumericValue ceiling()

      Implement the XPath ceiling() function
      Specified by:
        `ceiling` in class `NumericValue`
      Returns:
        the integer value, unchanged

    - #### round

          public NumericValue round(int scale)

      Implement the XPath round() function
      Specified by:
        `round` in class `NumericValue`
      Returns:
        the integer value, unchanged

    - #### roundHalfToEven

          public NumericValue roundHalfToEven(int scale)

      Implement the XPath round-to-half-even() function
      Specified by:
        `roundHalfToEven` in class `NumericValue`
      Parameters:
        `scale` - number of digits required after the decimal point; the value -2 (for example) means round to a multiple of 100
      Returns:
        if the scale is >=0, return this value unchanged. Otherwise round it to a multiple of 10**-scale

    - #### signum

          public int signum()

      Determine whether the value is negative, zero, or positive
      Specified by:
        `signum` in class `NumericValue`
      Returns:
        -1 if negative, 0 if zero, +1 if positive, NaN if NaN

    - #### abs

          public NumericValue abs()

      Get the absolute value as defined by the XPath abs() function
      Specified by:
        `abs` in class `NumericValue`
      Returns:
        the absolute value

    - #### isWholeNumber

          public boolean isWholeNumber()

      Determine whether the value is a whole number, that is, whether it compares equal to some integer
      Overrides:
        `isWholeNumber` in class `IntegerValue`
      Returns:
        always true for this implementation

    - #### plus

          public IntegerValue plus(IntegerValue other)

      Add another integer
      Specified by:
        `plus` in class `IntegerValue`
      Parameters:
        `other` - the other integer
      Returns:
        the result of the addition

    - #### minus

          public IntegerValue minus(IntegerValue other)

      Subtract another integer
      Specified by:
        `minus` in class `IntegerValue`
      Parameters:
        `other` - the other integer
      Returns:
        the result of the subtraction

    - #### times

          public IntegerValue times(IntegerValue other)

      Multiply by another integer
      Specified by:
        `times` in class `IntegerValue`
      Parameters:
        `other` - the other integer
      Returns:
        the result of the multiplication

    - #### div

          public NumericValue div(IntegerValue other)
                           throws XPathException

      Divide by another integer
      Specified by:
        `div` in class `IntegerValue`
      Parameters:
        `other` - the other integer
      Returns:
        the result of the division
      Throws:
        `XPathException` - if the other integer is zero

    - #### mod

          public IntegerValue mod(IntegerValue other)
                           throws XPathException

      Take modulo another integer
      Specified by:
        `mod` in class `IntegerValue`
      Parameters:
        `other` - the other integer
      Returns:
        the result of the modulo operation (the remainder)
      Throws:
        `XPathException` - if the other integer is zero

    - #### idiv

          public IntegerValue idiv(IntegerValue other)
                            throws XPathException

      Integer divide by another integer
      Specified by:
        `idiv` in class `IntegerValue`
      Parameters:
        `other` - the other integer
      Returns:
        the result of the integer division
      Throws:
        `XPathException` - if the other integer is zero

    - #### getSchemaComparable

          public Comparable getSchemaComparable()

      Get an object that implements XML Schema comparison semantics
      Specified by:
        `getSchemaComparable` in interface `AtomicSequence`
      Specified by:
        `getSchemaComparable` in class `AtomicValue`
      Returns:
        a Comparable that follows XML Schema comparison rules

    - #### reduce

          public IntegerValue reduce()

      Reduce a value to its simplest form.
      Specified by:
        `reduce` in interface `GroundedValue`
      Overrides:
        `reduce` in class `AbstractItem`
      Returns:
        the simplified sequence

Copyright (c) 2004-2013 Saxonica Limited. All rights reserved.